Incident Tracker / United States (federal)
Guerra-Quezada v. United States (with Guerra-Vasquez v. United States), Nos. 25-10372 and 25-10555 (5th Cir.)
·US Court of Appeals for the Fifth Circuit·US-FEDWarning
In consolidated appeals by an uncle and nephew claiming US citizenship, the US Court of Appeals for the Fifth Circuit identified fabricated quotations and misattributed authorities in both briefs, including language attributed to Ng Fung Ho v. White found in no opinion. It treated the affected arguments as forfeited and warned counsel that FRAP 28 prohibits citing nonexistent authority.
- Court
- US Court of Appeals for the Fifth Circuit
- Date
- 2026-08-14
- Who used the AI
- Lawyer
- AI tool
- Not identified in the record
- Conduct
- Appellants' counsel quoted Ng Fung Ho v. White for language found in no opinion, cited Doe v. McAleenan as a Fourth Circuit case when it is a Seventh Circuit decision, and misattributed a Perez v. Brownell dissent to Afroyim v. Rusk.
- Outcome
- Warning
- Penalty
- No monetary penalty recorded
- Regulatory outcome
- No separate regulatory disposition recorded
- Status
- Verified against listed sources
- Last checked
- 2026-09-03
Primary sources for this incident
Related regulation records for this incident
No related regulation record has been linked to this incident yet.
Cite this record
SafeLegalAI Global Legal AI Incident Tracker, “Guerra-Quezada v. United States (with Guerra-Vasquez v. United States), Nos. 25-10372 and 25-10555 (5th Cir.)”, safelegalai.com/tracker/guerra-quezada-v-united-states (accessed 2026-09-04). Data: CC BY 4.0.